Level.



PATENTED JAN. 22, 1907.

A. G. BEOKMAN & J. s. SGHELL.

LEVEL. APPLICATION FILED SEPT. 5.190s.

UNITED STATES PATENT OFFICE- ADOLPH G. BECKMAN AND JACOB S. SGHELL, OFBALTIMQRE, MARYLAND.-

LEVEL.

Patented Jan. 22, 1907.

To all whmn it may concern.-

Be it known that we, ADOLPH G. BECKMAN and JACOB S. SOHELL, citizens ofthe United States, residing at Baltimore, State of Maryland, haveinvented new and useful Improvements in'Levels, of which the followingis a specification.

This invention relates to levels; and one of the principal objects ofthe same isto rovide a level in which the degrees of inc ination will beindicated upon the dial.

Another object of the invention is to provide a level withanindicator-disk having indicator-marks thereon and a combined en dulumand pointer for indicating the varlous degrees of inclination of anyobject upon which the level is placed.

Another object is to rovide alevel which is es ecially adapted or'sewage, ditching, and rain work in which the various inclinations' canbe readily determined.

These and other Obj ects areattained by means of the constructionillustrated in the accompanying drawings, in which-:-

Figure 1 is a side elevation of a level made in aecordance with ourinvention. Fig. 2 is a plan view of the indicatingdial. Fig. 3 is avertical section on the line 3 3 of Fig. 1, shown on an enlarged scale.

Referring to the drawings for a more particular description of ourinvention, the numeral 1 designates the level-stock,having a centralenlargement 2 and a recess 3 formed in one side thereof to contain theoperative mechanism. Fitted within the recess 3 is a metal casing 4,having oppositely-disposed perforated lugs 5, through which theattaching-screws 6 are assed for'holding the casing within the leve-stock flush with the outer 'face thereof. Fitted into a boss 7 at theback ward outside the indicating-dial 14. The double-pointed pivot 9extends through a hole in an ,,en largement 15 in the pendulum andointer shaft. The pivot 9 is pivotedat its out end in the dial-plate 14,and said dialplate is held by screws 15 upon lugs17, cast u on the innerwall of the casing. The dialate has a semicircular recess or slot 19therem to permit the free movement of the oflse't portion 12 of thependulum and pointer, and u on said dial are the degree-marks 20 toindlcate the degree from zero representing thevertical to ninety degreeson the O posite sides thereof, the lower half of the dia -plate beingplain. A glass disk-21 is fitted over the dialplate to permit themovements of the pointer 13 to be readily seen.

The operation of the invention may be briefly described as follows: Byplacing the level upon an object the pointer will immediately indicatethe inclination, owing to the weighted end 11 of the pendulum, and sincethe indicating-marks are readily discernible through the glass cover 21the advantages over the ordinary spirit-level will be obvious.

Having thus described the invention, what we claim is- Theherein-described level consisting ofa concealed by said stock, adial-plate secured within the casin acombined pendulum and stock, acasing fitted within said stock and provided with a bearing-screw whichpasses through the rear wall of said casing and is dulum andpointer-shaft, said oflset extendiug through a semicircular opening inthe dial-plate, and a glass cover for the casing.

- In testimony whereof we-afiix our signatures in presence of twowitnesses. g

ADOLPH e. BECKMAN. JACOB s. soHELL.

Witnesses: JOHN MILLER ANTON WOLPEL.

